<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Test: descriptor range, invalid</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-range">
<link rel="match" href="descriptor-range-invalid-ref.html">
<link rel="stylesheet" href="support/test-common.css">
<style type="text/css">
  @counter-style a {
    system: extends lower-alpha;
    range: 1 2;
    range: 1;
    range: 3 1;
    range: xx yy;
  }
</style>
<ol style="list-style-type: a">
  <li><li><li><li><li>
</ol>
